Automatic Registration of Color Television Cameras
Accurate registration of the component images of a color television system is difficult to maintain over long periods. A comprehensive system of error detection and correction would divide the picture into a number of small areas to be dealt with separately. By means of scan perturbation it would then automatically reregister each area separately but the instrumentation of such a system would be complicated. An investigation into the performance of existing cameras showed that acceptably good registration can be achieved in continuous operation by the automatic control of only the image centering. A simple error detector, which operates upon picture information, together with a control system which varies the shift currents, has been devised.
- Print ISSN
- 0361-4573
- Published
- 1971-06
- Content type
- Original Research
- DOI
- 10.5594/J05784